Companies can also use it to analyze general employee skills so as to influence the kind of training that should be organized.Īs illustrated in the employee appraisal example above, HR Managers can simultaneously compare different factors in the employee competency dataset. Radar charts are very useful in the employee review and appraisal process.
Plot a filled radar chart for the test scores and use the graph to determine the class with the highest score in each of the subjects. Radar Chart ExamplesĮxample 2: Consider the table below, showing students’ average test scores for each subject offered. In the sample data visualized above, we can easily infer that Bryan is a better employee when compared to George. Especially, when using the filled radar chart, you can determine the overall metric of each group at a glance. Therefore, when comparing two or more groups of multivariate data, the radar chart is the best data visualization method.Įach of the groups displayed on the spider chart will cover a specific area based on its data. You can easily use the cover area of each group of data in the spider web to make an inference. The distinct feature of a radar chart is its ability to simultaneously compare different metrics to inform a decision. This section highlights the different situations when you should use a radar chart. Radar charts, just like other methods are best used in specific kinds of situations. One of the most important things when choosing a data visualization technique for your dataset is knowing when to use a particular technique. The number of radii to be drawn is determined by the number of variables present in the dataset, while its length is proportional to the magnitude of each variable with respect to the maximum magnitude of the variables in the dataset.įILLED RADAR CHART When to Use Radar Chart This chart consists of a sequence of radii drawn from a center point. What is a Radar Chart?Ī radar chart is a graphical method used for displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point.
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Since this chart is also one of the readily available charts in Excel, this article will be covering different aspects of a Radar chart, including a simple guide on how to create one using Excel. There are different types of Radar Chart, and its uses depend mainly on the nature of the data set and the aim of data analysis. It is able to generate this semblance from its equiangular spokes or radii, which represents each of the variables. But when the data is multivariate, the only option you are left with is the Radar Chart.Īlso known as the Spider Chart, this data visualization technique has so much semblance with a Spider web.
Although possessing more preference than one another, each of the different data visualization techniques in Statistics can be used interchangeably when dealing with univariate and bivariate data.
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